论文标题
物理知识的卷积变压器用于预测波动率的表面
Physics-Informed Convolutional Transformer for Predicting Volatility Surface
论文作者
论文摘要
预测波动率对于预测资产,期权定价和对冲策略很重要,因为它无法直接在金融市场中观察到。 Black-Scholes选项定价模型是市场参与者使用最广泛的模型之一。尽管如此,黑色 - choles模型还是基于严重批评的理论前提,其中之一是持续的波动性假设。挥发性表面的动力学很难估计。在本文中,我们建立了一种基于物理信息的神经网络和卷积变压器的新型体系结构。将新体系结构的性能直接与其他众所周知的深度学习架构进行比较,例如标准物理信息的神经网络,卷积长期术语记忆(ConvlSTM)和自我注意力转弯。数值证据表明,所提出的物理知识的卷积变压器网络比其他方法具有出色的性能。
Predicting volatility is important for asset predicting, option pricing and hedging strategies because it cannot be directly observed in the financial market. The Black-Scholes option pricing model is one of the most widely used models by market participants. Notwithstanding, the Black-Scholes model is based on heavily criticized theoretical premises, one of which is the constant volatility assumption. The dynamics of the volatility surface is difficult to estimate. In this paper, we establish a novel architecture based on physics-informed neural networks and convolutional transformers. The performance of the new architecture is directly compared to other well-known deep-learning architectures, such as standard physics-informed neural networks, convolutional long-short term memory (ConvLSTM), and self-attention ConvLSTM. Numerical evidence indicates that the proposed physics-informed convolutional transformer network achieves a superior performance than other methods.